1344157 - Wikipedia media viewer close needs about 3 seconds delay

Status: RESOLVED DUPLICATE of bug 575614

(Web Compatibility :: Site Reports, defect)

Description

[Emil Ghitta, QA [:emilghitta]]

[Affected versions]:
Firefox 45.8.0esr (Build Id:20170301181722)
Firefox 45.7.0esr (Build Id:20170118123525)
Firefox 52.0esr (Build Id:20170227085837)
Firefox 54.0a1 (Build Id:20170302030206)
Firefox 53.0a2 (Build Id:20170302004002)
Firefox 51.0.1 (Build Id:20170125094131)

[Affected platforms]:
Windows
Linux
Mac

[Steps to reproduce]:
1.Launch Firefox.
2.Access the https://en.wikipedia.org/wiki/United_States weblink (or any Wikipedia page which contains images).
3.Click on an image to zoom it.
4.Click the “X” button to close the image.
5.Observe that the image closes after a small delay.

[Expected result]:
The image closes right after the “X” button was clicked.

[Actual result]:
The image closes after a slight delay when clicking the “X” button.

[Regression range]:
This does not seem to be a recent regression, I'll follow up on this matter as soon as possible, with a regression range.

[Additional notes]:
This issue is no reproducible on Chrome 56.0.2924.87.

Comment 1

[Emil Ghitta, QA [:emilghitta]]

Attachment: Delay

Comment 2

[YF (Yang)]

This issue can be reproduced with earlier versions, e.g. Fx28, and seems to be a issue in Fx4.0 too. It may not be a bug or regression in Firefox.

Comment 3

[Daniel Holbert [:dholbert]]

As noted in bug 1344531 comment 7: what remains of this bug (after bug 1344398's changes) is basically a subtle version of bug 575614. (Multicol relayout [for the footnotes] is slow, even when it's just for a change in the available space; and the "overflow" tweak here is effectively just a change in the available space now, due to hiding/showing a scrollbar.)

It's possible bug 1367568 might improve things on platforms that have overlay scrollbars [where hiding/showing the scrollbar won't actually affect available space], but I'm not sure.  Anyway, that's not the norm, so this will basically still be an issue until we have a solution for bug 575614. --> duping